Elevator



(No Model.) 4 Sheets-Sheet 1.

' J. T, GOWLEY.

ELEVATOR. No. 551,620. Patented Dec. 17, 1895.

Illllllllll llllllllii'll ANDREW EGRAKAM,PHUYO-UTNOYWASHINGYON. I) L (NoModel.) 4 Sheets-Sheet 2.

J. T. COWLEY.

ELEVATOR.

Patented Dec. 17, 1895.

ANDREW B.GRAFAI.PHOT0-L|THO WASHINGTON Dc (No Model.) J. T. O0WLEY..

ELEVATQR. l

Patented Dec. 17 1895.

4 Sheets-Sheet 3.

(No Model.) 4 Sheets-Sheet 4.

' J. T. COWLEY.

ELEVATOR. I No. 551,620. Patented Dec. 17, 1895.

ANDREW BJSBANAM.FHOTO-LITNQWASNINGIONDLj UNIT D STATES PATENT OFFICE.

JAMES T. OOVVLEY, OF LOWVELL, MASSACHUSETTS, ASSIGNOR TO THE LAMSONCONSOLIDATED STORE SERVICE COMPANY, OF NEVARK, NE JERSEY.

'ELEVATO R.

SPECIFICATION forming part of Letters Patent No. 551,620, dated December17, 1895.

Applicati filed May 18, 1895- Serial No. 549,817- (No model.)

To alt whom it may concern.-

Be it known that I, JAMES T. COWLEY, of Lowell, county of MiddleseX, andState of Massachusetts, have invented new and useful Improvements inElevators; and I do hereby declare that the following is a full, clear,and exact description of the invention, which will enable others skilledin the art to which it appertains to make and use the same.

to My invention relates to new and useful improvements in elevators, andespecially relates to mechanism which can be adjusted to automaticallystop the elevator-carriage at any predetermined point. V I 5 Myinvention consists of certain novelfeatures, arrangements andcombinations hereinafter described, and particularly pointed out in theclaims. V

In the drawings which form a part of this specification, Figure 1 is aside elevation of the elevator, showing two floors in section and theelevator-carriage in position at the lower floor. Fig. 2 is an endelevation of a section ofthe elevator guide-rods with the 2 5elevator-carriage mounted on said rods. Fig. 3 is a plan view of theelevator and elevatorcarriage. Fig. 4 is a partial sectional view takenon the line 00, Fig. 3, looking in the direction indicated by the arrow,and showing 0 the graduated slides used to stop the elevator in itstravel between the floors. Fig. 5 shows a side elevation of theelevator-lifting mechanism. Fig. 6 is a plan view of the same.

Like letters of reference refer to like parts throughout theseveralviews.

A, A, A ,and A -represent four floors (see Fig. 4:) between which theelevator-carriage is intended to operate, and O represents, Fig. 1,suitable shelves locatedat each fioorat which the elevator-'carriage'isintended'to stop.

at each side of the elevator, and upon which the elevator-carriage D isadapted to travel, and supported at their tops by a cross-brace B andbraced at each floorby suitable sup ports 0'.

B.is a guide-rod, Figs. 1 and 3, placed at one side of the elevator nearone of the elevator guide-rods B, and is also supported at B representsthe elevator guide-rods placed shown in 2. projections O and O which areadapted to its top by cross-brace B and is also braced at each floor bysuitable supports C The elevator-carriage platform D is provided withlongitudinal braces D These 5 5 braces are fastened, Fig. 2, to thecasting D by suitable bolts which pass through the lugs D formed at thesides of the said casting D This casting D is also provided withdownwardly-extending ears C between which is mounted the arm D pivotedupon the stud D The outer ends of this arm are provided with eyes D towhich the elevator-carriageoperating cables E and E are attached. Thecasting D is provided with recesses at each end, which are entered bythe projections D on the elevator-guides D". One of theseelevator-guides D is firmly fastened to the casting D by the pinsOpassing through the projections D The other guide D is adapted to playloosely in the other recess, so that the loose guide D may accommodateitself to any irregularity in the elevator-guides B.

The brace D of the elevator-platform D is braced by suitable braces Dwhich are fastened at the ends to the longitudinal brace D and at thecenter to the casting D Mounted on the side of one of the longitudinalbraces Dare suitable supports D and D (see Fig. 3,) through which therod D passes, and the said rod D is provided at each end with a handle D(see Figs. 1 and 3,) having an index D adapted to register with suitableindex-plates D placed on the elevator-carriage -platform'D.' This rod isalso provided with collars D and D which are secured to said rod bysuitable screws.

Upon the shaft D between the collars D D is a spring D one end of whichis fastened to a dog D and the opposite end to another dog D These dogsare mounted upon the shaft in a reversed. position, as shown in Fig. 2,and the tension of the spring D ;is such as to keep them in the positionEach of these: dogs has 5 bear on the ribs 0 connecting the supports Dand D together, and the spring D holds these projectionsO and O incontact with the ribs 0 and maintains them in the position shown in Fig.2, but allows the dogs D and D to be rotated against the tension of thespring D to carry the pro ject-ions C and G? away from contact with theribs.

Upon the rod B, at each point where it is designed to stop theelevator-carriage, is placed a suitable slide G, which is formed toslide upon said rod B. One of these slides is provided for each floor,(see Figs. 1 and 4,) and they are all connected together by a rod Gpassing through a suitable lug G on the said slide and firmly held inthis position by a suitable set-screw. This slide Gis also provided witha graduated rib G at one end, and another graduated rib G at theopposite end. (See Figs. 1, 23 and Ti.) These graduated ribs are adaptedto be engaged by the dogs 1) and I) on the shaft D, at tached to theelevator-carriage, and to be raised and lowered by the same according tothe direction in which the elevator-carriage is moving.

The elevator-operating cables E and E, Fig. 1, pass upwardly oversuitable pulleys F and F supported by the brackets F and F mounted onthe brace B and passing downwardly around the drums J on theelevatoropera-ting mechanism, Figs. 5 and (5.

A suitable elevator-starting cable 11 is provided, Figs. 4 and 5, whichpasses by each floor and is provided at each floor with suitable handlesI I. This elevator-startin g cable passes over suitable pulleys 11. Fig.5, and is attached at each end to the rod G upon which the graduatedslides G are mounted. (See Figs. at and 5.) This elevator-starting cableII passes through the eye I on the elevator-operating mechanism, and isprovided with suitable collars II, one on each side of theelevator-starting lever K This elevator-starting cable is also providedwith a counterbalanee-weight H, the obj eet of which is tocounterbalance the combined weight of the slides G on the rod 13.

Referring now to the elevator-operating mechanism, Figs. 5 and 6, asuitable base J is provided, upon which are mounted the stands J, inwhich is journaled the shaft J carrying at its ends the drums J aroundwhich the lifting-cables E and E are wound. Upon this shaft J 2 at itscenter is mounted a wormwheel J which engages with a worm-wheel J,mounted loosely upon the shaft J journaled in the stand J which is alsomounted on the base J. Mounted also upon the base J at each end aresuitable bearings K, in which is journaled the shaft K. This shaft K isprovided with a right and left hand worm K and 1' which are adapted tomesh respectively with the worm -wheels J and J on the shafts J and J.This shaft K is also provided with two loose pulleys K and K and thetight pulley K and a collar. K Around the pulley K a straight beltisadapted to work, and around the pulley K a cross-belt is arranged, whichpasses upwardly over a suitable driving counter-shaft, from which theyreceive power. The base U is provided with a stand K in which is mountedone end of the shaft K the opposite end of which passes through. a lug Kon the stand J This shaft K is provided with a beltshifting arm K, whichis adapted to engage with the straight belt on the pulley K". The shaftK is also provided with a collar K upon which is mounted one end of thelink K. The opposite end of this link K is jour naled to thedownwardly-projecting arm K mounted on the shaft J and is adapted tomove the shaft K and carry with it the belt shifting arm K" when theshaft J is rotated. On the'opposite side of the base is mounted a lug Kand shaft K an d belt-shifting arm K The lug K and link K are similar inconstruction to the ones just described on the opposite side of themachine, and used in the same manner to engage with and move the belt Kon the pulley K in the same manncr as described for the belt K? on thepulley K. From the top of the arm K projects a hub K in which is mountedan arm K provided with an eye K through which passes theelevator-starting cable 11'.

\Vhen the handles ll, mounted on the elevator-starting cables 11, aremoved the collars II on the elevator-starting cable ll engage with theelevator-starting lever K on the elevator-operating mechanism (see Fig.and move the same in the direction in which the cord is pulled. Thismovement rotates the shaft J", which, through the connections on thearms K" and K and links K and K and shafts K and K shifts one of thebelts K or K onto the tight pulley K, and the elevator-startingmechanism is started and the elevator-lifting cables E and E are woundupon the drums J and the elevator-carriage is raised or loweredaccording to the direction in which the handles II are pulled, thestraight belt K operating to move the ele vator-carriage in onedirection and the crossbelt K operating to move it in. the otherdirection.

Referring now to the operation of the elevator-carriage I) and thegraduated mechanism which operates to stop the same, as shown in Figs. 3and 4, the ribs G and G are constructed of different lengths, the rib Gfor the first floor being of a suitable length and each successive rib Gincreasing in length according to the number of floors at which it maybe desired to stop the elevator. The ribs G are arranged to decrease inlength as the ribs G are increased and in the same proportion. Now ifthe elevator-carriage should be at one of the lower floors and it isdesired to send it to a higher fioor--tl1e sixth, forinstance-the handleD on the elevator-platform is moved so that the index will be moved tothe number corresponding to the floor at which it is desired theelevator should stop 1?. a, the sixth. This movement of the handle Dcarries with it the shaft D upon which are mounted the dogs I) and I).The elevator-carriage is then started by lifting upon the handle II,mounted on the elevator starting cable H. This movement starts theelevatorcarriage in its upward movement. The dog D will pass by the ribsG on all of the slides G until it approaches the slide at the sixthfloor, when the dog D will engage with the rib G on the slide G and liftthe same, and through the connections of the rod G and lever K theelevator-operating mechanism will be stopped, the grad uations of theribs G being such that the dog D will pass by each of the ribs untilitapproaches the one to which the index was set when starting theelevator. When it is desired to again return the elevator-carriage to afloor below, the index is set to the number which indicates the floor towhich the elevator-carriage is to be sent. The elevator-carriage isstarted on its downward movement, as before described for the upwardmovement, and the dogD will pass by each of the graduations Gr until itapproaches the one with which it was intended to engage, and theelevatorcarriage is again stopped, the movements being identical withthe movements before described for the upward movement of theelevator-carriage.

I do not limit myself to the arrangement and construction shown, as thesame may be varied without departing from the spirit of my invention.

Having thus ascertained the nature of my invention and set forth aconstruction embodying the same, what I claim as new, and desire tosecure by Letters Patent of the United States, is

1. In an elevator, means for starting and stopping the same, a series ofgraduated stops,

an adjustable stopping device on the elevator carriage common to all thegraduated stops and adapted to be adjusted to engage with any one'of thesaid graduated stops for stopping the elevator.

2. In an elevator, means for starting and stopping the same, a series ofgraduated stops, an adjustable stopping device on the elevator carriagecommon to all the graduated stops and adapted to be adjusted to engagewith anyone of the said graduated stops for stopping the elevator, andmeans for actuating said elevator adapted to be thrown out of actionupon the engagement of the said stopping device on the elevator and anyof the graduated stops.

3. In an elevator, means for starting and stopping the same, a series ofmovable graduated stops, an adjustable stopping device on the elevatorcarriage common to all the graduated stops and adapted to be adjusted toengage with any one of the said graduated stops for stopping theelevator, and means for guiding the said graduated stops in theirmovements.

4:. In an elevator, means for starting and stopping the same, a seriesof graduated stops connected together, an adjustable stopping device onthe elevator carriage common to all the graduated stops and adapted tobe adjusted to engage with any one of the said graduated stops forstopping the elevator.

5. In an elevator, means for starting and stopping the same, a series ofgraduated stops, means on the elevator carriage capable of adjustment toengage with any predetermined graduated stop for stopping the elevator,an index registering with an index plate on said elevator, and a rod towhich said index is connected upon which is mounted the said adj ustablemeans.

6. In an elevator, means for starting and stopping the same, a series ofgraduated stops, an adjustable stopping device on the elevator carriagecommon to all the graduated stops adapted to be adjusted to engage withany one of the said graduated stops for. stopping the elevator, andmechanism at each side of the elevator for adjusting the said adjustablestopping device for stopping the elevator.

In testimony whereof I have signed my name to this specification, in thepresence of two subscribing witnesses, on this 8th day of May, A. D.1895.

JAMES T. COIVLEY.

Witnesses DELIA S. PETERSON, S. H. TROW.

